Question: Solve x - y + 2z - w = 4 x + 4y + z + w = 4 2x + 2y + 4z +

Solve

x - y + 2z - w = 4 x + 4y + z + w = 4 2x + 2y + 4z + 2w = 10 y + z + 2w =

x - y + 2z - w = 4 x + 4y + z + w = 4 2x + 2y + 4z + 2w = 10 y + z + 2w =

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